Translation:

Black Shell
Wherever an angel continues to slip  
It's closed   White Shell
I'll give you this seashell
Give me your hand...

The sky   an obi the color of roses
Spreads out as if it's singing
Can the lonely you
Hear the sound of the ocean?

Black Shell
Reflects the light inside
It cannot be seen yet
White Shell   The only child
Your hand slips away

White Shell   a ship of dreams
Now when we'll close our eyes

The wind sweeps over your ears
It gently passes across your back
You always breathe with your chest
An eternal summer

Black Shell
Wherever an angel continues to slip
It's closed   White Shell
I'll give you this seashell
Close your eyes...